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| 河西灌区马铃薯茎基腐病的发生规律与防治技术研究 | |
| 引用本文： | 雷玉明,张建朝,费永祥,邢会琴,张建文.河西灌区马铃薯茎基腐病的发生规律与防治技术研究[J].植物保护,2011,37(1):124-127. |
| 作者姓名： | 雷玉明 张建朝 费永祥 邢会琴 张建文 |
| 作者单位： | 1. 河西学院农学系,张掖,734000;西部资源与环境化学重点实验室,张掖,734000;河西绿洲农业研究所,张掖,734000 2. 甘肃张掖市植保植检站,734000 3. 河西学院农学系,张掖,734000 |
| 基金项目： | 甘肃省教育厅科研项目，河西学院科研创新与应用校长基金项目 |
| 摘 要： | 本文首次报道马铃薯茎基腐病在田间表现为立枯型、萎蔫型、根腐型、黄化型4种症状类型，一般在苗期至现蕾期、开花期至结薯期为发病高峰期；明确了河西灌区种植的大多数品种对茎基腐病无明显抗性；发病程度与多种因素有关，灰钙土发病较重，其次为壤土，沙土发病较轻；土壤pH与含水量较高发病重；植株密度较高发病重；连作年限越长发病越重；与油菜、茄科蔬菜连作发病较重；高温有利于该病发生；经药剂种薯、土壤、灌根处理表明：以代森锰锌、菌核净和敌磺钠种薯和土壤处理，代森锰锌、井•1亿活枯草芽孢菌、菌核净灌根处理，防效达50.3%～65.9%。 |
| 关 键 词： | 马铃薯 茎基腐病 发生规律 药剂防治 河西灌区 |
Occurrence and control of potato crown rot in irrigated areas of Hexi Corridor |
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| Lei Yuming,Zhang Jianchao,Fei Yongxiang,Xing Huiqin,Zhang Jianwen.Occurrence and control of potato crown rot in irrigated areas of Hexi Corridor[J].Plant Protection,2011,37(1):124-127. | |
| Authors: | Lei Yuming Zhang Jianchao Fei Yongxiang Xing Huiqin Zhang Jianwen |
| Institution: | Lei Yuming1,2,3,Zhang Jianchao4,Fei Yongxiang4,Xing Huiqin1,Zhang Jianwen4(1.Department of Agronomy,Hexi University,Zhangye 734000,China,2.The Key Laboratory of East Resources and Environment,3.Hexi Institute of Oasis Agriculture,4.Zhangye Station of Plant Protection and Quarantine,Gansu 734000,China) |
| Abstract: | The symptoms of potato crown rot were recorded for the first time,i.e.damping-off,wilt,root rot and yellowing.The disease severely occurred during seedling,budding,flowering and fruiting stages.No significant resistance to crown rot had been observed in most cultivars.The effect of soil texture on potato crown rot was that the disease index was highest in sierozem,lower in clay loam and lowest in sandy soils.The disease occurrence was more serious in alkaline soils with high water content than in weak acid ... |
| Keywords: | potato crown rot occurrence chemical control Hexi irrigated area |
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